Evidence map›Paper›PMID 34282038›Full record

ArticleJournal of neurointerventional surgery2022

Safety and efficacy results of the Flow Redirection Endoluminal Device (FRED) stent system in the treatment of intracranial aneurysms: US pivotal trial.

Cameron G McDougall, Orlando Diaz, Alan Boulos, Adnan H Siddiqui, Justin Caplan, Johanna T Fifi, Aquilla S Turk, Yasha Kayan, Pascal Jabbour, Louis J Kim and 3 more

Registry-linked trialAbstract readMulticenter Study
In one paragraph

Article in Journal of neurointerventional surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01801007 (Pivotal Study of the MicroVention Flow Re-Direction Endoluminal Device), which is not on this map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT01801007 nacompletednot on this map

Pivotal Study of the MicroVention Flow Re-Direction Endoluminal Device (FRED) Stent System in the Treatment of Intracranial Aneurysms

TypeinterventionalSponsorMicrovention-Terumo, Inc.Ran2013 to 2018Enrolled145ConditionsIntracranial AneurysmsArmsFlow Re-Direction Endoluminal Device (FRED)
3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Impact of branch arteries on efficacy of endoluminal flow diverters: Insights from posterior communicating artery aneurysms.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2026
    Review
  3. Comparison of pipeline embolization device, flow re-direction endoluminal device and surpass flow diverters in the treatment of intracerebral aneurysms.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. The FRED-X Flow Diverter-An Australian Experience.Journal of medical imaging and radiation oncology · 2025
    Article
  8. Observational
  9. Multicenter analysis of the incidence of in-stent stenosis following the deployment of flow-redirection endoluminal device in the treatment of intracranial aneurysms.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2025
    Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Cameron G McDougallDepartment of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland, USA cgm@jhmi.edu.ORCID http://orcid.org/0000-0001-7372-7049
Orlando DiazCerebrovascular Center, Houston Methodist, Houston, Texas, USA.
Alan BoulosDepartment of Neurosurgery, Albany Medical Center, Albany, New York, USA.
Adnan H SiddiquiDepartment of Neurosurgery and Radiology and Canon Stroke and Vascular Research Center, University at Buffalo Jacobs School of Medicine and Biomedical Sciences, Buffalo, New York, USA.ORCID http://orcid.org/0000-0002-9519-0059
Justin CaplanDepartment of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland, USA.
Johanna T FifiDepartment of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
Aquilla S TurkDepartment of Neurosurgery, Prisma Health, Greenville, South Carolina, USA.
Yasha KayanDepartment of Neurointerventional Radiology, Abbott Northwestern Hospital, Minneapolis, Minnesota, USA.ORCID http://orcid.org/0000-0002-7747-0188
Pascal JabbourDepartment of Neurological Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.ORCID http://orcid.org/0000-0002-1544-4910
Louis J KimDepartment of Neurosurgery, University of Washington, Seattle, WA, USA.
Steven W HettsDepartment of Radiology and Biomedical Imaging, UCSF, San Francisco, CA, USA.
Daniel L CookeDepartment of Radiology and Biomedical Imaging, UCSF, San Francisco, CA, USA.
Christopher F DowdDepartment of Radiology and Biomedical Imaging, UCSF, San Francisco, CA, USA.

Funding

Virtual Intervention of Intracranial AneurysmsR01NS091075 · NINDS · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI MENG, HUI · 2015 to 2019
$1.7M
Optimizing Approaches to Endovascular Therapy of Acute Ischemic StrokeR21NS109575 · NINDS · UNIVERSITY OF SOUTH FLORIDA · PI MOKIN, MAXIM · 2019 to 2019
$420k
NINDS NIH HHS R01 NS091075NINDS NIH HHS R21 NS109575
6 · The paper itself

Abstract

objectiveTo evaluate the safety and effectiveness of the Flow Redirection Endoluminal Device (FRED) flow diverter in support of an application for Food and Drug Administration approval in the USA.

methods145 patients were enrolled in a prospective, single-arm multicenter trial. Patients with aneurysms of unfavorable morphology for traditional endovascular therapies (large, wide-necked, fusiform, etc) were included. The trial was designed to demonstrate non-inferiority in both safety and effectiveness, comparing trial results with performance goals (PGs) established from peer-reviewed published literature. The primary safety endpoint was death or major stroke (National Institutes of Health Stroke Scale score ≥4 points) within 30 days of the procedure, or any major ipsilateral stroke or neurological death within the first year. The primary effectiveness endpoint was complete occlusion of the target aneurysm with ≤50% stenosis of the parent artery at 12 months after treatment, and in which an alternative treatment of the target intracranial aneurysm had not been performed.

results145 patients underwent attempted placement of a FRED device, and one or more devices were placed in all 145 patients. 135/145 (93%) had a single device placed. Core laboratory adjudication deemed 106 (73.1%) of the aneurysms large or giant. A safety endpoint was experienced by 9/145 (6.2%) patients, successfully achieving the safety PG of <15%. The effectiveness PG of >46% aneurysm occlusion was also achieved, with the effectiveness endpoint being met in 80/139 (57.6%)

conclusionAs compared with historically derived performance benchmarks, the FRED flow diverter is both safe and effective for the treatment of appropriately selected intracranial aneurysms. CLINICAL REGISTRATION NUMBER: NCT01801007.

Indexed as

Embolization, TherapeuticEndovascular ProceduresIntracranial AneurysmStrokeHumansProspective StudiesStentsTreatment Outcomeaneurysmflow diverterinterventiontechnology

Identifiers

PMID34282038
PMCPMC9120407

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.